Create foreign key in phpMyAdmin IN URDU
It only takes a minute to sign up. By codyH, December 4, 2020 in MySQL Help. If the table you're trying to create includes a foreign key constraint, and I faced this error (errno ) but it was caused by mysql-created.
[SIMKES Khanza] Foreign key constraint is incorrectly formed
SQL is a special-purpose programming language designed for managing data in a relational database, and is used by a huge number of apps and organizations. SET @[email protected]@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @[email protected]@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @[email protected]@SQL_MODE, SQL_MODE='TRADITIONAL, ALLOW_INVALID. When performing foreign key checks, InnoDB sets shared row-level locks on child or parent records it has to look at. InnoDB checks foreign key constraints immediately; the check is not deferred to transaction commit.